The tests for the ductilefracturetoughness and the contact fatigue are also carried out for examining serviceability and durability of austenite-bainite ductile cast iron.
为了考察奥氏体-贝氏体球铁的可靠性和使用寿命，还进行了延性断裂韧度与接触疲劳性能的试验。
2
By comparing fatigue crack with electrosparking crack, the effects of crack tip on fracturetoughness of ductile iron have been studied.
通过开疲劳裂纹和线切割裂纹的对比试验，研究裂纹尖端的尖锐程度对球墨铸铁断裂韧性的影响；
3
The graphite globularity quality of ductile iron with fracturetoughness has been discussed.